Jade has more than 60 but less than 70 chocolate bars. If she puts them equally into packets of 10, she would be short of 2 chocolate bars. If she puts them equally into packets of 7, she would have 5 extra chocolate bars. How many chocolate bars does Jade have?
Multiples of 10: 50, 60, 70, 80
Multiples of 10 (-2): 48, 58, 68, 78
Multiples of 7: 49, 56, 63, 70, 77
Multiples of 7 (+5): 54, 61, 68, 75, 82
Common number more than 60 but less than 70: 68
Number of chocolate bars that Jade has = 68
Answer(s): 68